Tinning machine



Nov. 3o, 192e. 1,608,855

J.D.HARRE TINNING MACHINE 2 Sheets-Sheet 1 Fild Jan. 28. 1922 Nov. 30 1926. 1,608,855

y J. D. HARRIS TNNING MACHINE Filed IJan. 28, 1922 2 Sheets-Sheet 2 'l l@ @Mw `be coated as fast as it is fed'intothe tube Patented Nav. 30A, 1926.

JOSEPH D. m8,

.IrI-:gNTy OFFICE.

or nE'rnorr, MICHIGAN, ASSIGNOR, BY iunsnnV ASSIGNMENTS, 'ro

' HOCORD RADIATOR KFG. CO., OF DETROIT, MICEIGALL, A CORPORATION OF MAINE.

`zrINNINof Mncmrrf.-

Appncatmn med January 2s, naga.1 serial' No. 532,485.

, l This invention relates to' a machineV for coating with metal, as tinl solder by a continuous process the metal band or ribbon' a machine for coating simutaneous y both` 1sides of the' metal band or ri bon stock as it is fed through the machine and thus provide v' solder in the lock seam when the' coated band is made into radiator tubes.' g y Another object of'my invention is to so construct the machine .that it may be read ily used between and in conjunction with? the flux bath at one,end and ,the tube forming mechanism ats the other end of the machine, so that the metal band or ribbon stock may forming mechanismand thus coat the band and form the tubes by a continuous and uninterrupted process. c l

'A futher objectof my invention is to provide means for controlling 'the thickness j of the coatl g 'layers appliedto the ribbon or band an thus permit coatings of a pre-.

determined stock. Y

Other and further objects bf my invention will appear from the following specification,

- taken in connection with the accompanying drawings, in which` thickness tobe applied to lthe Fig. 1 is' ad' longitudinal sectional viewtaken through a coating machine constructed 1n accordance w1th my invention;

Fig. 2 1s a top plangiew of said machlne;

Figs. 3 yande are transverse verticaLsec? tional views2 taken on lines 3 3 and 4 4, respectively, of Fig. 1; and P Fig. 5 is a longitudinal vertical sectional' view taken on line 5-5 of Fig. 2.

As shown in the drawings, the machine of my invention` comprises an elongated, up-

wardly opening tank 1, supported above a.r `floor or other underlying surface by a suitmembers 2, 2 and vertical en ,d membersor legs 3, 3. Said 'tank 1 contains a bath of -V coating metal, as tin solder maintained in molten condition during'the use of the maable framework, comprising horizontal side chine by any suitable heating means associ ated with the tank. rl`his means, as Iillustrated in the drawings,- comprises a gas burner Y ipe extending beneath the bottoml wall of v frame having si Aconnected together at one end by a cross bar thev tank and supported between` the legs 3l thereof,as shown. I

- Extendinf/'acros's and secured to the side members 2, ,2

ings 6, 6 for a horizontally arranged shaft 7. One end of thisI shaft 7 projects beyond the adjacent side of themachine, and to it is fixed a pulley 8 whereby vthe shaft may be rotated. Arranoed above the' tank 1 is a die-members 9, 9, these being 10. The members 9 at the' other ends are at one end of the machine is a' f cross bar 5 having upwardly projecting beart mounted on the shaft 7 in a manner toper'- i mit the frame togbe raised and' lowered with respect to thetank, as shown in dott/ed lines v'in Fig. 1.

Extending between and journaled in the v-side members 9, 9 are two shafts 11, 12 having atl their ends, over the tank 1, ros 13, 14, respectively. Eer rotating these rolls in the .direction desired, such asl indicated vby the `arrows in F igt-5, I provide va sprocket -chain 15 looped `about a sprocketv Wheel 16 on the shaft 12 and looped aboutla sprocketl Wheel 17 'on the shaft 7. The 'lower-.lap

of the chain runs over asprocket wheel 1 8- on the shaft 11, and the upp'er la of the chain' rns over a grooved idler rrol er, 19 on` A an arm' 20 adjustably secured to the adjacent sidemember 9 of the frame,'a`s shown4 in `5.

ecured to the other `side member 9 of the frame in line `with *thel rolls 13,14 and on opposite sides thereof are the4 angle-plates 21, 22, Aarranged as shownin Figs. 2 and 3, for'holding against' their respective rolls 13,

14 blocks 23, 23 of salammoniac or-equiva-I lent material to -prevent'oxidization of the 'tin carried by the. surfaces of said rolls.

These blocksy also wipe o if surplus solder from the .rolls 13, 14and maintain the same clean In Fig. 1, l or ribbon stock tobe coated bymy machine,

Vby the numeral 24 extending-from a flux cleaner (not shown) over a ro1l'25 Yof'that have indicated the metal band mechanism, whichA roll 'is'supported n-,suitable manner above the machine herein shown and at the end ofthe tank-"1 opposite-,the

drivin' pulley 8. The ribbon or band'24 is carrie down intothe tank 1, tobe submerged into the bath off-hot coatingmetal i diameter and by rotating contained vtherein and led under'a roll 26 on a shaft 27 maintained in clipfshaped brackets E28A secured to the side members of the machine, as shown in Fig-2. c

The roll l26 is inline with the rolls 1'3, 14 which' arev in alignment with each other an -dip ldown-.into themetal bath. The band 24after leaving the roll 26, is threaded under the roll 14 and extends up between the rolls 13 and 14 and over the top of the latter` and on to a .tube forming machine (not shown) The rolls 13 and 14,have the same downward and away from` the band as it is progressed be-l the metal stock is carried on as fast as the I material. isfed into the tube forming meehanisn1,'thus increasing product-ion and only.

coating the stock as needed.v The band 24 being moved through the machine by the feed in the tube forming mechanism or mill, carries the band through the metal bath at thel speed required for the tube mill and at #the-tension best suited for" applying metal thereto. i The feed not being in the tinniug machine, makes possible the rotation' of thc l tweenlthe' rolls ser-ves to cause a 'substam rolls 13, 14 mechanically and in a direcbe applied tially uniform 'coat of metal to ribbon 24 to both'sides of the band 'orV as the rolls wipe ol'.l the surplus coa-ting metal which is natural y drawn jup by the band' o`nr passing etweerr these rolls. The band is fed through these rolls by suitable r' feeding, rolls of .the tube` forming machine, and consequently the rolls 13 and 14,,of,(my coating mai chine may b driven mechanically@i in ,a direction against the movement of the bandv between the same, as these rolls do not act to progress the band through the metal bath.

To facilitate threadingA the band-or ribbon' 24 between the rolls 13, 14 and over the former, the frame` carrying the rolls 13, 14 is raised above thev tank t0 lift the rolls out of the metal bath and thus permit the threading of theband or ribbon, between the rolls without dip ing down i tothe bathor emptying-the tan as indicated -by dot- -ted lines in 1. To enable the frame S to'be lifted, I provide a vertically movable bar29 arranged to' the rear ofthe machine, J as shown in theI drawings, and slidably con# nected with the rear side ,member 2 of the machine, there being a pin 29" on the frame 4member 2 and slot 29b in the bar for this purpose, as Nshown in dotted lines, in Fig; 1. The upperend 30 of this bar is offset inwardly and upwardly to come substantially midway between the side members 9 of the frame carrying the rolls 13, 14, and this end is 'bifurcated or slotted, as shown in thedrawings, to engage 'the cross bar 10 of said frame.` Thelower end of the member" is pivoted to a. foot pedal 31, Eivvhichin turn is` pivotally mounted between its ends toa suiti able bracket 32 resting on lthe floor. `The operator .on'depressing the pedal 31 by lhis foot'raiss the frame carrying the, rolls 13, 14=up out of the metalbath to -a position for threading the metal. band or ribbon between them, as heretofore mentioned.

By the machine shown and described, the metal ribbon or band, usually made ofl brass, is coated on both sides with tin or solder,

` and about theA ed es; thereof. y Thus solder seam `of the tubes formed from said band,edgewise between said rolls.

is both inside an outside of the 'crimped tion against the movement of thc band without being 1n grippingengagement therewith.

This enables a propel' application of coating to the band, and permits placing the rolls 13, 14 close enough together to regulate the thiclmessof 'the coating layers on the band and 'thus prevent the application, of surplus material. The fact that the rolls 13, 14 maybe raised out of the metal bath .iacilitates threading a bandA in thejnachine.

While I have shown and described herein in detail a machine of my invention, it is t be of .course understood that the details of construction and arrangement of parts shownv may be variously changed and modilied wit-hout departing from the spirit and scope of my invention.

f I claim as my invention:

1. In a machine for coating inetal band4 or ribbon stock with 4metal,v the combination with a bath of molten metal, of means adja-v cent the inlet-.end of the bath for guiding said band into the same, 'a vpair of inner and outer smoothing rolls held out of gripping engagement with the band and located at the delivery end of the bath with their lower ortions partiall submerged therein, said Band passlng un er and contacting with the lower periphery of theinner roll and passing over and contacting with the upper periphrer of the outer roll after passing. between sald rol s,.and means for positivelyrotating said rolls in directions opposed to the direction of travel o-said band .between them for making smooth and even the metal coatings on the band. a

2; In a machine for coating metal band or ribbon stock with metal, the combination with a bath of molten metal, of means at the inlet end of the bath forguiding the band into the same, a pair of smoothing rolls at the delivery end of the bath andin contact with .-both sides of the band, said rolls being y rotating said rolls in-v bath for inserting the band 3. In a machine for coating metal band or ribbon stock with metal, the combination of a tank to contain a bath of molten coating metal, a. pivotally mounted frame on said tank, rolls carried by saidy frame and partially submerged in the metal bath, said rolls being spaced apart forthe4 band to pass between them on leaving the metal bath, means for rotating said rolls relatively to said band as the latter passes between the )same for making smooth and even the metal coatings on the band, and manually operable lframe raising means whereby the rolls may be lifted out of the metal bath to permit insertion of the band edgewise therebetween.

4. Ina machine for coating metal band or ribbon stock with metal, the combination of molten coatingl a tank to contain a bath of metal, a main driven shaft'journaled above said tank, a frame pivoted on said shaft, two

being spaced apart for the band: to pass therebetween-on leaving the metal bath, a sprocket wheel on each of 'said 'shafts a. sprocket chain trained over said sprocket wheels in a mannerv to rotate said rolls against the direction of movement of v'the band between said rolls, and means for moving said frame upwardly whereby the rolls may, be raised out'of the metal bath.

5. In a machine for coating metalband or ribbon stock with metal, the combination o'f a' tank to contain a bath of molten coating metal, rolls partially submerged in the metal bath and spaced apart for the band to pass between 'them on leaving the metal bath,

members supporting salammoniac blocks in a' .tank to contain a bath ymetal, an 'upwardly movable :frame above shafts journaled'onK said f1-ame, rolls on said two shafts and rotated thereby,` said rolls 6.' In a machine for coating metal band or` ribbon stock withmetaL'thecombination of a tank to contain a bath of molten coating metadl, a frame abo-ve said tank, rolls carried by said frame and partially submerged in the metal bath, said rolls being spaced apart for the band to pass between them on leaving the metal bath; plates carried by-said frame on opposite sides of said rolls for supporting blocksy of salammoniac in wiping contact with said'rolls, andmeans for rotating said rolls against the direction of movement of the band between said rolls.

ribbon 'stock with metal,. the lcombination of of molten coating said tank, two rolls carried by said frame and partially submerged in the metal bath,

said rolls belng spaced'apart for the band to pass 'between them on leaving the metal bath, means fo; rotating-said rolls against-the direction of movement. of said band between -them 'for making smooth-'and even the coatings on the band, a vertically movable rod having its upper end ega'ged. with said frame for raising the same andtlifting Ithe rolls out of the metal bath, and a foot treadle connected with the lowerend of said rod for raising the same.

In testimony that I' claim the foregoing as my invention, I affixmy signature this 24 day of Jan., A. D, 1922.

JosEPn unnime.

7.V In a machine for coating metalband or.

depressible 

